Beckham has lifted the lid on a number of incidents during his time at Manchester United in his soon to be released book, David Beckham: My Side, and which have been serialised during the past week.

The England number seven has certainly not let the headline-grabbing stories impact on his game for he has made a stunning start with new club Real Madrid, scoring in both their opening Primera Liga matches.

He also grabbed the winner from the penalty spot in Saturday's crucial 2-1 European Championship victory in Macedonia to continue his fine run of form.

While Robson has applauded Beckham for his performances, he feels the book was a mistake as he said: "Personally I wouldn't have written a book like that.

"Sometimes I think when you are a top player, I wonder if it's necessary to write a book - whether it's on the football side or your private life.

"But David decided to do it and sometimes you can get a lot of criticism come back because of certain things you do say.

"I just feel that with the money players are on, there's no real necessity for them to be writing a book like that.

"It's something he could have stayed away from."

Beckham has revealed a degree of provocation during the match in Skopje, including spitting, yet it is a mark of his maturity these days he did not rise to the taunts.

He was, however, booked for a kick at Georgi Hristov, with another caution against Liechtenstein on Wednesday on his former Old Trafford stamping ground meaning he will be ruled out for the group decider with Turkey in Istanbul next month.